Functional Properties of Barium Hexaferrite Magnets Sintered by Using Nanostructured Particles

The carbon combustion synthesis technique has been used to produce barium hexaferrite nanostructured particles. Several methods such as X-ray diffractometry, scanning electron microscopy, magnetism measurement (VSM), and dielectric spectroscopy have been used to investigate crystal structure and magneto-electrical properties of the as-synthesized particles and sintered dense composites. The optimum conditions for fabrication of high dense BaFe₁₂O₁₉ magnets (5.2 g/cm³) are reported. Measured Z-component magnetic field intensity of magnetized samples confirms that magnets have a homogeneous spatial residual magnetic field distribution.